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A303463 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 0
1, 8, 170, 9110, 1243692, 427097893, 373571747330, 831176090437185, 4696687907289825363 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A303469.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=5

..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..0

..1..1..0..1..1. .0..1..1..0..1. .0..0..1..1..1. .1..0..1..1..0

..0..1..0..1..1. .0..1..0..0..1. .1..0..1..1..1. .0..0..1..1..0

..1..1..0..1..1. .0..0..0..1..1. .1..0..0..0..1. .1..0..0..1..0

..0..1..0..1..0. .0..1..0..0..0. .0..0..1..0..0. .1..0..1..1..1

CROSSREFS

Cf. A303469.

Sequence in context: A316816 A001534 A096486 * A300805 A317566 A301444

Adjacent sequences:  A303460 A303461 A303462 * A303464 A303465 A303466

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 24 2018

STATUS

approved

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Last modified December 4 06:33 EST 2021. Contains 349470 sequences. (Running on oeis4.)